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Comment: Prepared for Flavor Physics & CP Violation Conference, Taipei, 2008. Adding few more references, small correction to text
Comment: 4 pages, 5 figures, Presented at Quark Matter 2002, Nantes, France
We present the summary of the Working Group on lifetimes, mixing and weak mixing phases in charm and beauty mesons at the CKM 2010 workshop. In the past year or so good progress was achieved on both experimental and theoretical sides. While this yields improvement in our understanding of neutral meson mixing, further work is necessary to achieve the highest possible precision in order to investigate current hints for deviations between experiment and standard model predictions. With the recent LHC startup we see bright prospects for the near term future for huge improvements
In 2003 the X(3872) particle was discovered by the Belle collaboration. Despite results collected since then, the nature of the state still remains unclear. In this contribution we report on new results on properties of the X(3872) state using data collected with CDF II detector at the Fermilab Tevatron. The dipion mass spectrum and angular distributions are used to determine the $J^{PC}$ quantum numbers of the state.
Comment: 44 pages, 37 figures, submitted to European Journal of Physics. Fixing misplaced figures, no change of text
[[abstract]]Using 605 fb(-1) of data collected at the Upsilon(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B -> X-s gamma. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we measure the partial branching fraction and the mean and variance of the photon energy spectrum. At the 1.7 GeV threshold we obtain the partial branching fraction BF(B -> X-s gamma)=(3.45 +/- 0.15 +/- 0.40)x10(-4), where the errors are statistical and systematic.
[[abstract]]We report a search for the decays B(0) -> K*(0)(K) over bar*(0) and B(0) -> K*(0)K*(0) . We also measure other charmless decay modes with K(+) pi(-)K(-)pi(+) and K(+)pi(-)K(+)pi(-) final states. The results are obtained from a data sample containing 657 x 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider. We set upper limits on the branching fractions for B(0) -> K*(0)(K) over bar*(0) and B(0) -> K*(0)K*(0) of 0: 81 x 10(-6) and 0.20 x 10(-6), respectively, at the 90% confidence level.
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